Tobacco-drying system and apparatus.



J. B. MUSE.

TOBACCO DRYING SYSTEM AND APPARATUS.

APPLICATION FILED NOV] H. l9l5.

Patented July 23,1918.

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)waAcco DRYING SYSTEM AND APPARATUS.

' APPLICATION FILED NOV H. 1915- Patentfid July 23, 1918.

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TOBACCO-DRYING AND APPARATUS.

Application filed November 11, 1915.

To all whom-it may concern:

Be it known that I, JoI-IN BERT ll/iusn, a citizen of the United States of America, residing at Cameron, in the county of Moore and State of North Carolina, have invented certain new and useful Improvements in Tobacco-Drying Systems and Apparatus, of which the following is a specification, reference being had therein to the accompanying drawin This invention relates to a tobacco curing apparatus and has for its object the pro- .duction of a simple and efficient means for I distributing the heat equally throughout the barn or building in which the tobacco is stored.

Another object of this invention is the production of a simple and eflicient furnace which may cause the heat to be equally distributed over the furnace from all sides thereof.

With these and other objects in View, this invention consists of certain novel combinations, constructions, and arrangements of parts, as will be hereinafter fully described and claimed.

In the accompanying drawings Figure l is a front elevation of the storing barn, showing a furnace applied thereto.

Fig. 2 is a horizontal section through the barn, showing the furnace in top plan.

Fig. 3 is a section taken on the line 33 of Fig. 2.

Fig. 4 is a section. taken on the line i i of Fig. 3.

Fig. 5 is an enlarged sectional view taken on line 5-5 of Fig. 2.

Fig. 6 is an enlarged sectional View through the base portion of the furnace showing the manner in which the lower ends of the inner and outer walls are sup ported.

Fig. 7 is a detailed perspective View of a portion of one end of the lilillllitCtfi, showthe manner in which. the inner and outer walls are locked together.

Fig. 8 is a detailed perspective of a portion of the furnace, showing the lip memhere which are adapted to engage the different heating fines.

Fig. 9 is an enlarged section through the rear end of the furnace, showing the man nor in which the furnace is reinforced at the point where the top heating tube engages the same.

Specification of Letters Patent.

Patented July 23, rate.

Serial no. 60,933.

Fig. 10 is a section taken on line 1010 of Fig. 3. I

Referring to the accompanying drawings by numerals it will. be seen that 1 designates a barn or other housing in which the furnace is adapted to be placed and by carefully considering Fig. 2, it will be seen that the furnace 2 is adapted to extend well into the barn and have its outer end projecting slightly from the front edge of the barn. The furnace 2 comprises an elongated body having the forward end thereof open. The furnace comprises an inner wall 4: and an outer wall 5 which walls are arranged in spaced relation to each other to permit the free passage of air between the walls for the purpose of discharging the air and heating the same prior to the air passing out through the heating fines 6 hereinafter described.

The side walls of the furnace are provided with laterally extending feet 7 and 8, the feet 8 or flanges 8 of the outer wall 5 fitting upon the flanges or feet 7 of the inner wall i. The flanges S of the outer wall 5 are provided with downwardly bent tongues 9, which tongues 9 are bent under the flanges 7 of the inner wall 41-. The flanges 7 of the inner wall 4:, however, are provided. with upwardly bent or rolled tongues 10 which overhang the flanges 8 of the outer wall 5, thereby constituting an eiiicient means for locking the respective walls of the furnace 2 in proper spaced relation and preventing the respective walls from shifting, with respect to each other.

The inner wall i is provided with a plurality of rearwardly extending tongues 11 at its rear endywhich tongues are punched out from the sheet metal wall t for pro ducing a smoke exit aperture 12. The outer ends 13 of these tongues 11 are bent latcrally so as to overhang the outer faces of the outer wall 5.

It will. be seen that these tongues 11 will C(JllStlfUtO a guide for directing heat into the heati .lg tube 141: through the .apertufe 12. The heating tube 14 passes rearwardly and. is then connected so as to extend forwardly and has its forward end 15 passing through the aperture 16' formed in the top of the outer wall 5, the lower end of the forward portion 15 of the heating tube 14 resting upon the top face of the inner wall 4. The integral tongue 16 is formed upon the inner wall 4 and is inclined rearwardly to direct heat up through the tube 14:- It of course, should be understood that the front of the furnace is open as shown clearly in Fig. 3 of the drawings and that fire is built within the housing or furnace thereby allowing the smoke to pass out through the front of the furnace, the tube 14 constituting merely an additional heating medium within the barn 1.

The outer wall 4 is provided along the sides thereof with a plurality of outwardly bent spaced tongues 17, which tongues 17 are struck from the sides of the outer wall 4 for the purpose of producing the heat exit apertures 18. The heating flues 6, previously mentioned, are provided with enlarged socket portions 19 for fitting over the tongues 17 and constituting a tight joint for permitting the passage of the heat through the heating fines 6 from between the inner wall 4: and the outer wall 5. If so desired, these tongues 17 may be formed of spring metal to constitute a means for frictionally holding the socket members 19 of the heat ing flues 6 against accidental displacement.

By carefully considering the drawings it will be seen that a very simple and efficient heating device has been produced wherein the fuel may be placed within the fire boX or under or within the inner casing l and the air may pass between the respective walls and thus become heated prior to entering the heat discharge fiues 6..

It of course should be understood that suitable dampers may be employed in the heating tube 14c if so desired as well as in the heating flues 6 for. controlling the passage of heat through the fines.

It should be further understood that these heating flues may be so constructed as to extend in any desired or convenient direction, without departing from the spirit of the invention.

By means of the present device it should be understood that logs of wood may be readily and conveniently burned in the present furnace and by means of the method of distributing the heat as disclosed, a very uniform distribution has been provided for the purpose of conveniently and efficiently drying tobacco in a minimum amount of time. It has been found from experience with the device as illustrated that tobacco may be efliciently dried within a period of fortyeight hours whereas, under the old apparatus previously employed, four or live days were required to properly cure the same amount of tobacco.

hat I claim is In a tobacco drying furnace, the combination with a building, a foundation at one end of said building, said foundation partly within the building and partly on the outside thereof, of an inner and outer wall upon said foundation, said inner and outer walls partly on the outside of said building and partly within said building, a heat-com taining space formed between said inner and outer walls, said outer wall being spaced at its lower edge from said foundation for permitting air to pass into the heating space between the inner and outer walls, a heating-tube extending at its ends through the outer wall and opening at one end into the top and at its other end into the rear end of the fire-box constituted by said foundation and the inner wall, said inner wall provided at the end of the heating-tube that opens into the top of fire-box with a depending, inclined deflecting tongue, a plurality of horizontal, straight heating-tubes carried by the sides and rear end of the outer wall and opening at their inner ends into the space between the outer and inner walls and open ing at their outer ends into the building, and the fire-box constituted by said foundation and inner wall being open at its outer end, so that fuel can be fed into the fire-box outside of the building, substantially as shown and described.

In testimony whereof I hereunto aiiiX my signature.

JOHN BERT MUSE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, 1 Washington, D. G. 

